Research on Interruption Characteristics of Low Voltage Hybrid DC Circuit Breaker

XIONG Dezhi; CHEN Shidong; LANG Xiaojian; XIAO Yu; YIN Jianning

doi:10.13296/j.1001-1609.hva.2025.06.005

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Research on Interruption Characteristics of Low Voltage Hybrid DC Circuit Breaker

Research & Analysis | 更新时间：2025-06-12

- Research on Interruption Characteristics of Low Voltage Hybrid DC Circuit Breaker
- High Voltage Apparatus Vol. 61, Issue 6, Pages: 43-51(2025)
- 作者机构：
  
  1.国网湖南省电力有限公司供电服务中心（计量中心）智能电气量测与应用技术湖南省重点实验室，长沙　 410004
  2.国家电网湖南电力有限公司，长沙　 410004
  3.西安理工大学电气工程学院，西安　 710054
- 作者简介：
- 基金信息：
  
  Science and Technology Project of State Grid Hunan Electric Power Co., Ltd.(5216AG21N00C)
- DOI：10.13296/j.1001-1609.hva.2025.06.005
  CLC：
- Received：02 December 2024，
  
  Revised：18 March 2025，
  
  Published：16 June 2025
- 稿件说明：
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XIONG Dezhi, CHEN Shidong, LANG Xiaojian, et al. Research on Interruption Characteristics of Low Voltage Hybrid DC Circuit Breaker[J]. High voltage apparatus, 2025, 61(6): 43-51.
DOI：

XIONG Dezhi, CHEN Shidong, LANG Xiaojian, et al. Research on Interruption Characteristics of Low Voltage Hybrid DC Circuit Breaker[J]. High voltage apparatus, 2025, 61(6): 43-51. DOI： 10.13296/j.1001-1609.hva.2025.06.005.

摘要

电力系统中大量可再生清洁能源的引入在带来电能高效利用的同时也对系统控制与保护用直流断路器提出了新要求，尤其在光伏发电领域中光伏发电系统电压等级的攀升导致光伏发电用直流断路器需要承受更高的电压（>1 500 V），混合式直流断路器的出现解决了高电压下难分断的问题。在混合式直流断路器中IGBT的快速响应为直流开断快速性提供了基础，而直流微型断路器作为机械开关时能够在分断过程中使得电弧电压较短时间内上升至IGBT导通电压实现换流。通过在DC 1 000 V系统中验证混合式直流断路器的开断迅速的优势后，仿真预测了这种混合式直流断路器在DC 1 500 V系统中的开断特性，在对比电弧能量后进一步体现了混合式直流断路器的开断优势。混合式直流断路器的研究对低压系统的控制与保护提供了思路。

Abstract

The introduction of a large number of renewable clean energy in power system not only facilitates efficient utilization of electric energy

but also imposes new requirements on DC circuit breakers for system control and protection. Particularly in the field of photovoltaic power generation the increase of voltage levels of photovoltaic systems causes to DC circuit breaker to withstand higher voltage (>1 500 V)

and the emergence of hybrid DC circuit breaker has addressed the issue of hard interruption at high voltage. The fast response of IGBT in the hybrid DC circuit breaker has provided the foundation for rapid DC interruption. Meanwhile

the DC miniature circuit breaker

functioning as a mechanical switch

can quickly raises the arc voltage to the conduction voltage of the IGBT during the breaking process to achieve commutation. After verifying the rapid interruption advantage of the hybrid DC circuit breaker in the DC 1 000 V system

the interruption performance of the hybrid DC circuit breaker is simulated and predicted in the DC 1 500 V system and

after the comparison of the arc energy

the interruption advantage of the hybrid DC circuit breaker is reflected further. The research of the hybrid DC circuit breaker has provided idea for both control and protection of low voltage system.

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Related Author

YIN Jianning

XIAO Yu

LANG Xiaojian

XIONG Dezhi

DING Can

YU Chaojie

YUAN Zhao

LIU Ping

Related Institution

School of Electrical Engineering, Xi’an University of Technology

Hunan Province Key Laboratory of Intelligent Electrical Measurement and Application Technology (State Grid Hunan Electric Power Limited Company Power Supply Service Center (Metrology Center))

State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology

College of Electrical Engineering & New Energy, China Three Gorges University

Xi'an High Voltage Apparatus Research Institute Co., Ltd.

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